The CruzTOOLS GrooveTech Guitar Player Tech Kit provides everything you need to set up and maintain guitars, plus an easy setup guide and carry case. The kit features 11 Allen/hex keys that are color coded, gold for metric and black for inch sizes (truss rod sizes are ball end for easy access), a 6 in 1 screwdriver, string cutters, thickness gauge, ruler, string winder and set up capo.